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Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Implement runRollback to not use runUpdate Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Add version tag and add flag quiet to suppress progress output Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Removed flags from warnDetachDefault Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Used command.Cli interface Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Add detach flag on rollback command Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Create a fakeClient for service commands Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Added unit test for rollback command Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Used command.Cli interface instead of *command.DockerCli in service commands Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Revert "Removed flags from warnDetachDefault" This reverts commit 3e4f601c8a82cc2599a755dc693409bbc47917fc. Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Fixed test.NewFakeCli instanciation Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Removed unused receiver Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Replaced cli by dockerCli Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Revert "Removed unused receiver" This reverts commit 604ef7c13df3d019949ca81d992db501114dafce. Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Fixed last typo Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com>
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title, description, keywords
| title | description | keywords |
|---|---|---|
| service scale | The service scale command description and usage | service, scale |
service scale
Usage: docker service scale [OPTIONS] SERVICE=REPLICAS [SERVICE=REPLICAS...]
Scale one or multiple replicated services
Options:
-d, --detach Exit immediately instead of waiting for the service to converge (default true)
--help Print usage
Description
The scale command enables you to scale one or more replicated services either up or down to the desired number of replicas. This command cannot be applied on services which are global mode. The command will return immediately, but the actual scaling of the service may take some time. To stop all replicas of a service while keeping the service active in the swarm you can set the scale to 0.
Examples
Scale a single service
The following command scales the "frontend" service to 50 tasks.
$ docker service scale frontend=50
frontend scaled to 50
The following command tries to scale a global service to 10 tasks and returns an error.
$ docker service create --mode global --name backend backend:latest
b4g08uwuairexjub6ome6usqh
$ docker service scale backend=10
backend: scale can only be used with replicated mode
Directly afterwards, run docker service ls, to see the actual number of
replicas.
$ docker service ls --filter name=frontend
ID NAME MODE REPLICAS IMAGE
3pr5mlvu3fh9 frontend replicated 15/50 nginx:alpine
You can also scale a service using the docker service update
command. The following commands are equivalent:
$ docker service scale frontend=50
$ docker service update --replicas=50 frontend
Scale multiple services
The docker service scale command allows you to set the desired number of
tasks for multiple services at once. The following example scales both the
backend and frontend services:
$ docker service scale backend=3 frontend=5
backend scaled to 3
frontend scaled to 5
$ docker service ls
ID NAME MODE REPLICAS IMAGE
3pr5mlvu3fh9 frontend replicated 5/5 nginx:alpine
74nzcxxjv6fq backend replicated 3/3 redis:3.0.6